So Long as They Die
Lethal Injections in the United StatesSummaryWe didn’t discuss pain and suffering.
—William Henry Lloyd, Tennessee Department of Corrections lethal injection protocol committee member1
Compared to electrocution, lethal gas, or hanging, death by lethal injection appears painless and humane, perhaps because it mimics a medical procedure. More palatable to the general public, lethal injection has become the most prevalent form of execution in the United States. Thirty-seven of the thirty-eight death penalty states and the federal government have adopted it; for nineteen states, it is the only legal method of execution.
In the standard method of lethal injection used in the United States, the prisoner lies strapped to a gurney, a catheter with an intravenous line attached is inserted into his vein, and three drugs are injected into the line by executioners hidden behind a wall. The first drug is an anesthetic (sodium thiopental), followed by a paralytic agent (pancuronium bromide), and, finally, a drug that causes the heart to stop beating (potassium chloride).
Although supporters of lethal injection believe the prisoner dies painlessly, there is mounting evidence that prisoners may have experienced excruciating pain during their executions. This should not be surprising given that corrections agencies have not taken the steps necessary to ensure a painless execution. They use a sequence of drugs and a method of administration that were created with minimal expertise and little deliberation three decades ago, and that were then adopted unquestioningly by state officials with no medical or scientific background. Little has changed since then. As a result, prisoners in the United States are executed by means that the American Veterinary Medical Association regards as too cruel to use on dogs and cats.
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Each of the three drugs, in the massive dosages called for in the protocols, is sufficient by itself to cause the death of the prisoner. Within a minute after it enters the prisoner’s veins, potassium chloride will cause cardiac arrest. Without proper anesthesia, however, the drug acts as a fire moving through the veins. Potassium chloride is so painful that the American Veterinary Medical Association prohibits its use for euthanasia unless a veterinarian establishes that the animal being killed has been placed by an anesthetic agent at a deep level of unconsciousness (a “surgical plane of anesthesia” marked by non-responsiveness to noxious stimuli).
Pancuronium bromide is a neuromuscular blocking agent that paralyzes voluntary muscles, including the lungs and diaphragm. It would eventually cause asphyxiation of the prisoner. The drug, however, does not affect consciousness or the experience of pain. If the prisoner is not sufficiently anesthetized before being injected with pancuronium bromide, he will feel himself suffocating but be unable to draw a breath—a torturous experience, as anyone knows who has been trapped underwater for even a few seconds. The pancuronium bromide will conceal any agony an insufficiently anesthetized prisoner experiences because of the potassium chloride. Indeed, the only apparent purpose of the pancuronium bromide is to keep the prisoner still, saving the witnesses and execution team from observing convulsions or other body movements that might occur from the potassium chloride, and saving corrections officials from having to deal with the public relations and legal consequences of a visibly inhumane execution. At least thirty states have banned the use of neuromuscular blocking agents like pancuronium bromide in animal euthanasia because of the danger of undetected, and hence unrelieved, suffering.
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http://hrw.org/reports/2006/us0406/1.htm#_Toc133042043